Know the gold.
Know what you buy.
Gold jewelry should be described with more than a single word. Karat, gold content, weight, dimensions, finish and construction all matter. Nathalias turns those specifications into a transparent, consumer-readable record.
Karat tells you how much gold is in the alloy.
Royal Chain’s public catalog organizes gold jewelry by 10K, 14K and 18K, and individual product pages disclose fields such as Metal Type, Metal Color and Gold Karat. Nathalias keeps those useful conventions and adds the corresponding gold-content percentage for consumers.
10 parts gold out of 24. Commonly used in durable, everyday jewelry.
14 parts gold out of 24. A widely used balance of gold content and durability.
18 parts gold out of 24. Higher gold content with a richer gold composition.
Royal Chain Gold Catalog →
Purity is one data point. A trustworthy product record needs more.
Royal Chain product pages provide a useful specification model: SKU, weight, length, metal type, metal color, gold karat, finish, closure type, dimensions, chain type and how the product is sold. Nathalias can turn these fields into a consumer-facing Product Passport.
SKU + Product ID + verification status.
Metal type + color + karat + gold-content percentage.
Weight + dimensions + length + finish + closure/construction.
Testing laboratory + report reference + verification date, when applicable.
A strong jewelry page starts with precise specifications.
Royal Chain’s public 14K Gold 4.2mm Paperclip Chain page, for example, lists multiple weights by length and discloses collection, metal type, color, karat, finish, closure, dimensions and chain type.
| Specification | Royal Chain public example | Nathalias Trust layer |
|---|---|---|
| SKU / Product identity | RC11170 + length-specific SKUs | SKU + Product ID + QR |
| Gold karat | 14K | 14K + 58.5% Gold Content |
| Metal / color | Gold / Yellow | Published clearly |
| Finish | Polished | Published in Passport |
| Closure | Lobster | Published in Passport |
| Dimensions | 4.2mm | Consumer-readable dimensions |
| Weight | Approx. by variant; e.g. 18″ = 4.40g | Approx. product weight + variance note |
| Assay evidence | Certificates available upon request | Online evidence link where available |
Examples from RCI’s public catalog.
These products are included solely as benchmark references for product-information architecture. They are Royal Chain products, not Nathalias products.
Image sources are referenced directly from Royal Chain’s website domain. Royal Chain also provides an official marketing-assets request process for its approved wholesale customers, including web-ready product images.
Why doesn’t all gold look exactly the same?
Gold jewelry can vary in color even when the karat is the same. The appearance of a gold alloy depends partly on the other metals combined with the gold.
YELLOW GOLD
The classic warm appearance traditionally associated with gold. Yellow-gold alloys may contain metals such as silver, copper and zinc in addition to gold.
WHITE GOLD
A lighter-colored gold alloy created by combining gold with selected white metals. Some white-gold jewelry may also receive a rhodium finish to create a brighter white appearance.
ROSE GOLD
Its warm pink or rose appearance is typically achieved through a higher proportion of copper within the gold alloy.
Color may vary slightly between manufacturers and alloy formulations, even when the gold karat is the same.
Small marks can carry important information.
Depending on the product and manufacturer, gold jewelry may carry a quality or fineness mark.
Examples may include:
10K · 417
14K · 585
18K · 750
These marks indicate the stated karat or fineness of the gold alloy.
Marking format and placement may vary depending on the product, manufacturer, size and country of manufacture.
A hallmark or stamp is useful product information, but Nathalias does not rely on a stamp alone as proof of authenticity.
REAL GOLD.
REAL SPECIFICATIONS.
REAL ACCOUNTABILITY.
NATHALIAS NEW YORK